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Method for operating a transmission and transmission having at least two shifting devices

A technology for shifting devices and transmissions, applied in transmission control, components with teeth, belts/chains/gears, etc., can solve problems such as stick-slip, reduce costs, improve shift quality, and reliable slip reversal Effect

Inactive Publication Date: 2016-04-27
AVL LIST GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the so-called stick-slip phenomenon can occur in the shifting device, which acts in an undesirable manner on the shifting mass
In addition, undesired effects can occur on other transmission components, especially strong loads and contact changes, torque peaks or torque pulses on the tooth surfaces of the gears

Method used

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  • Method for operating a transmission and transmission having at least two shifting devices
  • Method for operating a transmission and transmission having at least two shifting devices

Examples

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Embodiment Construction

[0068] figure 1 The drive train 6 of the transmission 1 according to an embodiment of the invention is shown in a principle block diagram. The drive train 6 shown in this embodiment is that of a hybrid motor vehicle with an internal combustion engine 60 and an electromechanical energy converter 50 called an electric machine. By means of the transmission 1 , torque can be transmitted from the internal combustion engine 60 and / or the electric machine 50 to an output pinion 70 , wherein the output pinion 70 is connectable or connectable to driveable wheels of the hybrid motor vehicle.

[0069] Conversely, torque can also be transmitted from output pinion 70 to internal combustion engine 60 and / or electric machine 50 , in particular in the sense of a resistive torque operation of internal combustion engine 60 and / or by means of electric machine 50 in order to recover energy.

[0070] In this embodiment, the transmission 1 has a first shifting device 10 , a second shifting device ...

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PUM

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Abstract

The invention relates to a method for operating, in particular shifting, a transmission (1), in particular for motor vehicles, which transmission comprises at least two friction-locking shifting devices (10, 20, 30, 40), which each have an input side (11, 21, 31, 41) and an output side (13, 23, 33, 43), wherein a slip value (S) can be defined on the basis of a difference between a rotational speed of the input side (11, 21, 31, 41) and a rotational speed (11, 21, 31, 41) of the output side, and wherein each of said shifting devices (10, 20, 30, 40) has at least one load shifting state, in which the input side (11, 21, 31, 41) and the output side (13, 23, 33, 43) are connected to each other in order to transmit torque, and an idle shifting state, in which the input side (11, 21, 31, 41) and the output side (11, 21, 31, 41) are substantially not connected to each other, and wherein a first of said shifting devices (10) is shifted from the load shifting state thereof to the idle shifting state thereof or vice versa and a second of said shifting devices (20) is shifted from the idle shifting state thereof to the load shifting state thereof or vice versa in dependence on the slip value (S20) thereof only when said slip value (S20) has a different sign after a zero crossing, in particular in the sense of a slip reversal, than between the shifting of the first shifting device (10) and the zero crossing.

Description

technical field [0001] The invention relates to a transmission for operation, in particular for shifting gears, in particular for a motor vehicle, having at least two shifting devices. Furthermore, the invention relates to a transmission with at least two shifting devices as well as to a motor vehicle and a drive train with such a transmission. Background technique [0002] The invention is described with reference to the use of a road-based motor vehicle with a hybrid drive architecture, in which a transmission having at least two input shafts and at least one output shaft is used multiple times, in particular for combining torque. However, it is pointed out that the device / method according to the invention can also be used in any other application, in particular in the field of rail or water-composite motor vehicles, or in static applications, in particular in the field of power plants and / or buildings middle. [0003] A shifting sequence with at least two, in particula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/04F16H59/46
CPCF16H61/04F16H59/46F16H61/0403F16H2059/465F16H2061/0422
Inventor 斯蒂芬·利希滕埃格穆阿迈尔·约尔加
Owner AVL LIST GMBH
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